Integrated semiconductor optical amplifier system
    1.
    发明授权
    Integrated semiconductor optical amplifier system 有权
    集成半导体光放大器系统

    公开(公告)号:US06381066B1

    公开(公告)日:2002-04-30

    申请号:US09675332

    申请日:2000-09-28

    IPC分类号: H01S550

    摘要: A semiconductor optical amplifier system comprises a hermetic package. In the typical implementation, this hermetic package is a standard 0.75 inch×0.5 inch package, such as a butterfly package. An optical bench is sealed within this package. A first fiber pigtail enters this package via a feed-through to connect to the bench and terminate above the bench. A second optical fiber pigtail enters the package via a second fiber feed-through to connect to the bench and similarly, terminate above the bench. A semiconductor amplifier chip is connected to the bench to provide amplification. Isolators are further incorporated along with a monitoring diode to yield a fully integrated system.

    摘要翻译: 半导体光放大器系统包括气密封装。 在典型的实施中,这种密封封装是标准的0.75英寸×0.5英寸封装,例如蝴蝶封装。 一个光学台被密封在这个包装内。 第一根纤维尾纤通过馈通进入该包装,连接到工作台并终止在工作台上方。 第二个光纤尾纤通过第二个光纤馈通进入封装,连接到工作台,类似地,终止于工作台上。 半导体放大器芯片连接到台架以提供放大。 隔离器与监视二极管一起进一步并入,以产生完全集成的系统。

    System and process for post alignment polarization extinction ratio compensation in semiconductor laser system
    2.
    发明授权
    System and process for post alignment polarization extinction ratio compensation in semiconductor laser system 有权
    半导体激光系统中后置校正偏振消光比补偿的系统和工艺

    公开(公告)号:US07249894B1

    公开(公告)日:2007-07-31

    申请号:US09707710

    申请日:2000-11-07

    IPC分类号: G02B6/36 H01S3/10

    摘要: A system and process for tuning the PER of an electronic system during and/or after its manufacture includes fixtures that allow for the axial rotation of the polarization-maintaining optical fiber relative to the optical system after the optical fiber has been installed in the system. The degradation in the PER ratio of the optical system results from mechanical stresses placed on the fiber during the manufacture of the systems. For example, in the case of optical pump manufacturing, the semiconductor laser is installed on a submount. The PM fiber enters a package through a fiber feedthrough in a ferrule and then is secured down onto the submount, such that the endface of the pigtail is held in proximity to the exit facet of the semiconductor laser. In such systems, highly robust fixturing processes are used, typically such as solder bonding, in which the fiber is metallized and solder bonded either directly or indirectly to the submount. Further, solder is typically applied to seal the ferrule around the fiber since these packages must be hermetically sealed to provide for the long-term stable operation. The solder bonding processes can create asymmetries in the residual stress fields applied around the circumference of the fiber after the solder has cooled. These asymmetric stress fields lead to distortions in the stress-induced birefringent medium of the fiber. This results in coupling between the two polarization modes of the PM fiber, and consequently the degradation of the PER of the system from that expected from the separate components, for which the present invention can compensate.

    摘要翻译: 在制造期间和/或之后调整电子系统的PER的系统和过程包括在光纤已经安装在系统中之后允许偏振保持光纤相对于光学系统的轴向旋转的固定装置。 光学系统的PER比的降低是由于系统制造过程中放置​​在光纤上的机械应力引起的。 例如,在光泵制造的情况下,将半导体激光器安装在基台上。 PM纤维通过套圈中的纤维馈通进入包装中,然后被固定到底座上,使得尾纤的端面保持靠近半导体激光器的出口小面。 在这样的系统中,使用高度牢固的固定工艺,通常例如焊接,其中纤维被金属化并且直接或间接地焊接到底座。 此外,通常施加焊料以将套圈密封在纤维周围,因为这些包装必须被气密密封以提供长期稳定的操作。 在焊料冷却之后,焊接工艺可能在纤维周围施加的残余应力场产生不对称性。 这些不对称应力场导致纤维的应力诱导双折射介质的变形。 这导致PM光纤的两种偏振模式之间的耦合,并且因此从本发明可以补偿的单独部件所预期的系统的PER降低。

    System and method for automated fiber polishing
    3.
    发明授权
    System and method for automated fiber polishing 有权
    自动纤维抛光的系统和方法

    公开(公告)号:US06488567B1

    公开(公告)日:2002-12-03

    申请号:US09711029

    申请日:2000-11-09

    IPC分类号: B24B4900

    CPC分类号: B24B49/12 B24B19/226 G02B6/25

    摘要: An improved system and method for automated fiber polishing overcomes the limitations of conventional systems and methods. In particular, the present invention provides for continuous determination of the quality of the polish during a polishing procedure. An optical signal is transmitted to a fiber tip, and any back-reflected signal is detected and monitored to determine polish quality. In this manner, automated polishing quality assurance is provided in real time.

    摘要翻译: 用于自动纤维抛光的改进的系统和方法克服了常规系统和方法的局限性。 特别地,本发明提供了在抛光过程中连续确定抛光剂的质量。 将光学信号传输到光纤尖端,并且检测和监视任何背反射信号以确定抛光质量。 以这种方式,实时提供自动抛光质量保证。

    Stray light insensitive detector system and amplifier
    4.
    发明授权
    Stray light insensitive detector system and amplifier 有权
    杂散光不敏感探测器系统和放大器

    公开(公告)号:US07450862B2

    公开(公告)日:2008-11-11

    申请号:US10392353

    申请日:2003-03-19

    IPC分类号: H04B10/06

    摘要: A detector system for a fiber optic component is insensitive to stray light. Specifically, the invention comprises a detector chip, which converts received light into an electric signal. A baffle substrate is positioned over the detector chip. This baffle substrate has a transmission port through which an optical signal is transmitted to the detector chip. As a result, light that is not directed to be transmitted through the port is blocked by the baffle substrate. In this way, it rejects stray light that may be present in the hermetic package. A detector substrate is provided on which the detector chip is mounted. This detector substrate preferably comprises electrical traces to which the detector chip is electrically connected. The detector substrate can further comprise bond pads for wire bonding to make electrical connections to the electrical traces.

    摘要翻译: 用于光纤部件的检测器系统对杂散光不敏感。 具体地,本发明包括将接收的光转换成电信号的检测器芯片。 挡板基板位于检测器芯片上。 该挡板基板具有传输端口,通过该传输端口将光信号传输到检测器芯片。 结果,不被透射通过端口的光被挡板衬底阻挡。 以这种方式,它拒绝可能存在于密封包装中的杂散光。 设置有检测器芯片安装在其上的检测器基板。 该检测器基板优选地包括检测器芯片电连接到的电迹线。 检测器基板还可以包括用于引线键合的接合焊盘以与电迹线进行电连接。

    Optical channel monitoring system with simultaneous C-band and L-band detection
    5.
    发明授权
    Optical channel monitoring system with simultaneous C-band and L-band detection 有权
    具有同步C波段和L波段检测的光通道监控系统

    公开(公告)号:US07348541B1

    公开(公告)日:2008-03-25

    申请号:US09648263

    申请日:2000-08-25

    IPC分类号: H04B10/08 G01N21/25

    摘要: A monitoring system has the capability to monitor multiple signal bands simultaneously. Specifically, in one embodiment, the monitoring system can simultaneously monitor the C- and L-bands. As a result, the time to scan through the spectral band can be reduced by half. The system comprises a signal source for an optical signal having spectrally separated channels distributed within a first spectral band and a second spectral band. A tunable filter filters this optical signal. A dichroic filter separates the first spectral band from the second spectral band in the optical signal, which has been filtered by the tunable filter. Thereafter, first and second optical detectors detect the respective spectral bands to the filtered optical signal.

    摘要翻译: 监控系统具有同时监控多个信号频带的能力。 具体地说,在一个实施例中,监视系统可以同时监视C波段和L波段。 结果,扫描光谱带的时间可以减少一半。 该系统包括用于具有分布在第一光谱带和第二光谱带内的光谱分离的信道的光信号的信号源。 可调谐滤波器对此光信号进行滤波。 二向色滤光器将光信号中的第一光谱带与第二光谱带分离,该光信号已被可调谐滤波器滤波。 此后,第一和第二光学检测器检测滤波后的光信号中的相应光谱带。

    Silicon optical bench OCT probe for medical imaging
    6.
    发明授权
    Silicon optical bench OCT probe for medical imaging 有权
    硅光学台用于医学成像的OCT探针

    公开(公告)号:US08515221B2

    公开(公告)日:2013-08-20

    申请号:US12693181

    申请日:2010-01-25

    IPC分类号: G02B6/26

    摘要: An optical probe for emitting and/or receiving light within a body comprises an optical fiber that transmits and/or receives an optical signal, a silicon optical bench including a fiber groove running longitudinally that holds an optical fiber termination of the optical fiber and a reflecting surface that optically couples an endface of the optical fiber termination to a lateral side of the optical bench. The fiber groove is fabricated using silicon anisotropic etching techniques. Some examples use a housing around the optical bench that is fabricated using LIGA or other electroforming technology. A method for forming lens structure is also described that comprises forming a refractive lens in a first layer of a composite wafer material, such as SOI (silicon on insulator) wafers and forming an optical port through a backside of the composite wafer material along an optical axis of the refractive lens. the refractive lens is preferably formed using grey-scale lithography and dry etching the first layer.

    摘要翻译: 用于在体内发射和/或接收光的光学探针包括传输和/或接收光信号的光纤,包括纵向延伸的光纤槽的硅光学台,其保持光纤的光纤端接和反射 表面,其将光纤端接件的端面光学耦合到光学平台的侧面。 使用硅各向异性蚀刻技术制造纤维槽。 一些例子使用使用LIGA或其他电铸技术制造的光学平台周围的外壳。 还描述了一种用于形成透镜结构的方法,其包括在诸如SOI(绝缘体上硅)晶片的复合晶片材料的第一层中形成折射透镜,并且沿着光学器件通过复合晶片材料的背面形成光学端口 折射透镜的轴线。 折射透镜优选使用灰度光刻形成并且对第一层进行干蚀刻。

    Optical system active alignment process including alignment structure attach, position search, and deformation
    7.
    发明授权
    Optical system active alignment process including alignment structure attach, position search, and deformation 有权
    光学系统主动对准过程包括对准结构连接,位置搜索和变形

    公开(公告)号:US06559464B1

    公开(公告)日:2003-05-06

    申请号:US09648148

    申请日:2000-08-25

    IPC分类号: G01N2186

    摘要: Mounting and alignment structures for optical components allow optical components to be connected to an optical bench and then subsequently aligned, i.e., either passively or actively, in a manufacturing or subsequent calibration or recalibration, alignment or realignment processes. The structures comprise quasi-extrusion portions. This portion is “quasi-extrusion” in the sense that it has a substantially constant cross section in a z-axis direction as would be yielded in an extrusion manufacturing process. The structures further comprise at least one base, having a laterally-extending base surface, and an optical component interface. At least one armature connects the optical component interface with the base. In the preferred embodiment, the base surface is securable to an optical bench.

    摘要翻译: 用于光学部件的安装和对准结构允许光学部件连接到光学平台,然后在制造或随后的校准或重新校准,对准或重新对准过程中随后对准,即被动地或主动地对准。 该结构包括准挤压部分。 在挤出制造过程中将产生在z轴方向上具有基本恒定的横截面的意义上,该部分是“准挤压”。 所述结构还包括至少一个具有横向延伸的基面的基座和光学部件接口。 至少一个电枢将光学部件接口与基座连接。 在优选实施例中,基座表面可固定到光学平台。

    Optical component installation process
    8.
    发明授权
    Optical component installation process 有权
    光学元件安装过程

    公开(公告)号:US06416937B1

    公开(公告)日:2002-07-09

    申请号:US09648349

    申请日:2000-08-25

    IPC分类号: C25D100

    摘要: Mounting and alignment structures for optical components allow optical components to be connected to an optical bench and then subsequently aligned, i.e., either passively or actively, in a manufacturing or subsequent calibration or recalibration, alignment or realignment processes. The structures comprise quasi-extrusion portions. This portion is “quasi-extrusion” in the sense that it has a substantially constant cross section in a z-axis direction as would be yielded in an extrusion manufacturing process. The structures further comprise at least one base, having a laterally-extending base surface, and an optical component interface. At least one armature connects the optical component interface with the base. In the preferred embodiment, the base surface is securable to an optical bench.

    摘要翻译: 用于光学部件的安装和对准结构允许光学部件连接到光学平台,然后在制造或随后的校准或重新校准,对准或重新对准过程中随后对准,即被动地或主动地对准。 该结构包括准挤压部分。 在挤出制造过程中将产生在z轴方向上具有基本恒定的横截面的意义上,该部分是“准挤压”。 所述结构还包括至少一个具有横向延伸的基面的基座和光学部件接口。 至少一个电枢将光学部件接口与基座连接。 在优选实施例中,基座表面可固定到光学平台。

    Optical channel monitoring system with self-calibration
    9.
    发明授权
    Optical channel monitoring system with self-calibration 有权
    光通道监控系统具有自校准功能

    公开(公告)号:US06407376B1

    公开(公告)日:2002-06-18

    申请号:US09648267

    申请日:2000-08-25

    IPC分类号: H04B1008

    摘要: An optical monitoring system provides for out-of-band calibration. As a result, calibration can be performed simultaneously with monitoring. This can be used to accomplish faster and/or more accurate scanning. In addition, the need for complex switching and/or multiplexing capabilities can be avoided. The system comprises a signal source of an optical signal having spectrally separated channels, which are distributed within a spectral band, such as a WDM signal. A reference source generates a reference signal outside of the spectral band. A tunable filter filters the optical signal and the reference signal. A reference signal detector then detects the filtered reference signal, while an optical signal detector detects the filtered optical signal.

    摘要翻译: 光学监控系统提供带外校准。 因此,可以同时监视校准。 这可以用于实现更快和/或更准确的扫描。 此外,可以避免对复杂的开关和/或复用能力的需要。 该系统包括具有频谱分离的信道的光信号的信号源,其分布在诸如WDM信号的频谱带内。 参考源在频谱带外产生参考信号。 可调谐滤波器对光信号和参考信号进行滤波。 参考信号检测器然后检测滤波的参考信号,而光信号检测器检测滤波的光信号。

    Method and System for Avoiding Package Induced Failure in Swept Semiconductor Source
    10.
    发明申请
    Method and System for Avoiding Package Induced Failure in Swept Semiconductor Source 有权
    扫描半导体源避免封装引发故障的方法和系统

    公开(公告)号:US20120257210A1

    公开(公告)日:2012-10-11

    申请号:US13428826

    申请日:2012-03-23

    IPC分类号: G01B9/02 H01S5/026

    摘要: Dry oxygen, dry air, or other gases such as ozone are hermetically sealed within the package of the external cavity laser or ASE swept source to avoid packaging-induced failure or PIF. PIF due to hydrocarbon breakdown at optical interfaces with high power densities is believed to occur at the SLED and/or SOA facets as well as the tunable Fabry-Perot reflector/filter elements and/or output fiber. Because the laser is an external cavity tunable laser and the configuration of the ASE swept sources, the power output can be low while the internal power at surfaces can be high leading to PIF at output powers much lower than the 50 mW.

    摘要翻译: 干氧,干燥空气或其他气体(如臭氧)密封在外腔激光器或ASE扫描源的封装内,以避免包装引起的故障或PIF。 相信在SLED和/或SOA面以及可调谐法布里 - 珀罗反射器/滤波器元件和/或输出光纤处发生由于在具有高功率密度的光学接口处的烃破坏引起的PIF。 因为激光器是外部可调谐激光器和ASE扫频源的配置,所以功率输出可能很低,而表面的内部功率可能很高,导致PIF的输出功率远低于50 mW。